Joan Kramer and David Heeley — an Emmy-winning duo behind docs on Humphrey Bogart, Judy Garland, Fred Astaire and many more — dish on old Hollywood in the new tome, “In the Company of Legends.”

Kramer recalls how Paul Newman was constantly pranking her over years of working together.

“I’ve often called the Newmans at their homes,” Kramer recalls, and, “Unlike so many big stars, they usually answered their own phone . . . The first voice I’d hear would be Paul’s.”

In 1983, Kramer dialed Newman’s wife, Joanne Woodward, but “before I’d caught on to his deviousness, [Paul] said, ‘Joanne’s not here. She’s in Calcutta — playing in summer stock.’”

Kramer said she thought Woodward didn’t like to fly.

“She will if I’m with her,” the “Cool Hand Luke” star explained, “So I took her on my plane and I’ll pick her up in about three weeks and bring her home.”

He said Woodward didn’t mind the Calcutta heat in July because she grew up in Georgia.

Another time, Newman answered and told Kramer “through clenched teeth,” “I told you never to call me at this number. She’s home. Meet me on Route 6, motel room number five. The key’ll be under the mat.”

She then heard Woodward laughing in the background.

For a 1987 film on James Stewart, Heeley asked the “It’s a Wonderful Life” star, who was a brigadier general in the Air Force Reserve, “Can you describe for me a typical day when you were the lead pilot in a [WWII] bombing mission ?”

Stewart “looked directly at me without smiling and said, ‘No.’ That was it. No explanation. Just one word: ‘No.’ ”

Another producer later warned Heeley, “Yes, he’s wonderful to work with, and yes, most of the time he’s quiet and gentle. But don’t f–k with him.”